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tokio: fix cache line size for RISC-V (#5994)

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This commit is contained in:
Icenowy Zheng 2023-09-11 15:22:14 +08:00 committed by GitHub
parent 61f095fdc1
commit 1c428cc558
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 10 additions and 28 deletions
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12
tokio/src/runtime/io/scheduled_io.rs
View File

@ -44,25 +44,20 @@ use std::task::{Context, Poll, Waker};
),
repr(align(128))
)]
// arm, mips, mips64, riscv64, sparc, and hexagon have 32-byte cache line size.
// arm, mips, mips64, sparc, and hexagon have 32-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_arm.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mipsle.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips64x.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_riscv64.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/sparc/include/asm/cache.h#L17
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/hexagon/include/asm/cache.h#L12
//
// riscv32 is assumed not to exceed the cache line size of riscv64.
#[cfg_attr(
any(
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv32",
target_arch = "riscv64",
target_arch = "sparc",
target_arch = "hexagon",
),
@ -79,12 +74,13 @@ use std::task::{Context, Poll, Waker};
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_s390x.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/s390/include/asm/cache.h#L13
#[cfg_attr(target_arch = "s390x", repr(align(256)))]
// x86, wasm, and sparc64 have 64-byte cache line size.
// x86, riscv, wasm, and sparc64 have 64-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/dda2991c2ea0c5914714469c4defc2562a907230/src/internal/cpu/cpu_x86.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_wasm.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/sparc/include/asm/cache.h#L19
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/riscv/include/asm/cache.h#L10
//
// All others are assumed to have 64-byte cache line size.
#[cfg_attr(
@ -95,8 +91,6 @@ use std::task::{Context, Poll, Waker};
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv32",
target_arch = "riscv64",
target_arch = "sparc",
target_arch = "hexagon",
target_arch = "m68k",

12
tokio/src/runtime/task/core.rs
View File

@ -57,25 +57,20 @@ use std::task::{Context, Poll, Waker};
),
repr(align(128))
)]
// arm, mips, mips64, riscv64, sparc, and hexagon have 32-byte cache line size.
// arm, mips, mips64, sparc, and hexagon have 32-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_arm.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mipsle.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips64x.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_riscv64.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/sparc/include/asm/cache.h#L17
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/hexagon/include/asm/cache.h#L12
//
// riscv32 is assumed not to exceed the cache line size of riscv64.
#[cfg_attr(
any(
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv32",
target_arch = "riscv64",
target_arch = "sparc",
target_arch = "hexagon",
),
@ -92,12 +87,13 @@ use std::task::{Context, Poll, Waker};
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_s390x.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/s390/include/asm/cache.h#L13
#[cfg_attr(target_arch = "s390x", repr(align(256)))]
// x86, wasm, and sparc64 have 64-byte cache line size.
// x86, riscv, wasm, and sparc64 have 64-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/dda2991c2ea0c5914714469c4defc2562a907230/src/internal/cpu/cpu_x86.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_wasm.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/sparc/include/asm/cache.h#L19
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/riscv/include/asm/cache.h#L10
//
// All others are assumed to have 64-byte cache line size.
#[cfg_attr(
@ -108,8 +104,6 @@ use std::task::{Context, Poll, Waker};
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv32",
target_arch = "riscv64",
target_arch = "sparc",
target_arch = "hexagon",
target_arch = "m68k",

14
tokio/src/util/cacheline.rs
View File

@ -27,21 +27,15 @@ use std::ops::{Deref, DerefMut};
),
repr(align(128))
)]
// arm, mips, mips64, and riscv64 have 32-byte cache line size.
// arm, mips and mips64 have 32-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_arm.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mipsle.go#L7
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_mips64x.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_riscv64.go#L7
#[cfg_attr(
any(
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv64",
),
any(target_arch = "arm", target_arch = "mips", target_arch = "mips64",),
repr(align(32))
)]
// s390x has 256-byte cache line size.
@ -49,11 +43,12 @@ use std::ops::{Deref, DerefMut};
// Sources:
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_s390x.go#L7
#[cfg_attr(target_arch = "s390x", repr(align(256)))]
// x86 and wasm have 64-byte cache line size.
// x86, riscv and wasm have 64-byte cache line size.
//
// Sources:
// - https://github.com/golang/go/blob/dda2991c2ea0c5914714469c4defc2562a907230/src/internal/cpu/cpu_x86.go#L9
// - https://github.com/golang/go/blob/3dd58676054223962cd915bb0934d1f9f489d4d2/src/internal/cpu/cpu_wasm.go#L7
// - https://github.com/torvalds/linux/blob/3516bd729358a2a9b090c1905bd2a3fa926e24c6/arch/riscv/include/asm/cache.h#L10
//
// All others are assumed to have 64-byte cache line size.
#[cfg_attr(
@ -64,7 +59,6 @@ use std::ops::{Deref, DerefMut};
target_arch = "arm",
target_arch = "mips",
target_arch = "mips64",
target_arch = "riscv64",
target_arch = "s390x",
)),
repr(align(64))